<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>

<form action="/Servlet_Filter/user/sfd2.do" method="post">
    用户名：<input type="text" name="name"><br>
    <input type="submit" value="提交">
</form>

</body>
</html>